Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67..860r&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, July-Aug. 1990, p. 860-874. In Russian.
Astronomy and Astrophysics
Astronomy
8
Atmospheric Models, Eclipsing Binary Stars, Limb Darkening, Stellar Atmospheres, Stellar Models, Approximation, Brightness Distribution, Brightness Temperature
Scientific paper
Results of an analysis of several methods for determining linear limb darkening coefficients for classical stars indicate that the best approximation to the limb-darkening laws of a classical-star model is the linear approximation in which the total flux from the star is retained. It is also shown that, for the correct solution of light curves of classical eclipsing systems, the limb darkening coefficient is best determined as the brightness coefficient, which describes correctly brightness distribution across the disk of an eclipsing star. On the basis of a series of contemporary nongray atmospheric models, alternative tables are obtained for these limb-darkening coefficients for different temperatures and wavelengths.
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